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Comment:Use a better mechanism for checking for functions which require libraries+headers
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SHA3-256: 79081a9bf190d6130d50d4e5784a078c957b423d89da944d46fff13124ead54a
User & Date: rkeene on 2019-01-23 22:03:00.570
Other Links: manifest | tags
Context
2019-01-23
22:03
Use a better mechanism for checking for functions which require libraries+headers Leaf check-in: 79081a9bf1 user: rkeene tags: trunk
20:33
Use Autoconf Archive OpenMP check check-in: 494f675279 user: rkeene tags: trunk
Changes
Side-by-Side Diff Ignore Whitespace Patch
Added aclocal/xax_check_func_in_lib.m4 version [3bca7447d3].
Modified autogen.sh from [a208158f34] to [834e7f414f].
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	http://chiselapp.com/user/rkeene/repository/autoconf/doc/trunk/versionscript.m4
	'http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_check_compile_flag.m4'
	'http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_check_link_flag.m4'
	'http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_openmp.m4'
)

localFiles=(
	aclocal/xax_check_func_in_lib.m4
)

failed='0'
for command in "${commands[@]}"; do
	if [ ! -f "$(which "${command}" 2>/dev/null)" ]; then
		echo "error: Unable to locate ${command}" >&2
		failed='1'
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Modified configure.ac from [a03ae74853] to [5539a13b22].
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	AC_DEFINE([NANO_TCL_HAVE_OPENMP], [1], [Define if you have support for OpenMP])
])

dnl Random number generation mechanisms
AC_CHECK_FUNCS(getrandom,, [
	AC_CHECK_FUNCS(getentropy,, [
		AC_CACHE_CHECK([for CryptGenRandom], nanotcl_cv_func_CryptGenRandom, [
			save_LIBS="${LIBS}"
			LIBS="${save_LIBS} -ladvapi32"
			AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <windows.h>
#include <wincrypt.h>
			]], [[
				HCRYPTPROV provider;
				BOOL ret;
				ret = CryptGenRandom(provider, 0, NULL);
		XAX_CHECK_FUNC_IN_LIB(windows.h wincrypt.h, -ladvapi32, CryptGenRandom)
				if (ret) {
					return(0);
				} else {
					return(1);
				}
			]])], [
				nanotcl_cv_func_CryptGenRandom='yes'
			], [
				nanotcl_cv_func_CryptGenRandom='no'
			])
			LIBS="${save_LIBS}"
		])
		if test "x$nanotcl_cv_func_CryptGenRandom" = 'xyes'; then
			LIBS="${LIBS} -ladvapi32"
			AC_DEFINE(HAVE_WINDOWS_H, [1], [Define if we have <windows.h>])
			AC_DEFINE(HAVE_WINCRYPT_H, [1], [Define if we have <wincrypt.h>])
			AC_DEFINE(HAVE_CRYPTGENRANDOM, [1], [Define if we have CryptGenRandom])
		fi
	])
])

dnl Check for name resolution capabilities
AC_CHECK_FUNCS(getaddrinfo, [
	AC_CHECK_FUNCS(getnameinfo, [
		AC_CHECK_HEADERS(sys/types.h sys/socket.h netdb.h)
	])
], [
	AC_CACHE_CHECK([for getaddrinfo on Windows], nanotcl_cv_func_getaddrinfo, [
	XAX_CHECK_FUNC_IN_LIB(ws2tcpip.h windows.h, -lws2_32, getaddrinfo, [
		save_LIBS="${LIBS}"
		LIBS="${save_LIBS} -lws2_32"
		AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <ws2tcpip.h>
		XAX_CHECK_FUNC_IN_LIB(ws2tcpip.h windows.h, -lws2_32, getnameinfo)
#include <windows.h>
		]], [[
			int gai_ret;
			gai_ret = getaddrinfo(NULL, NULL, NULL, NULL);
			if (gai_ret == 0) {
				return(1);
			} else {
				return(0);
			}
		]])], [
			nanotcl_cv_func_getaddrinfo='yes'
		], [
			nanotcl_cv_func_getaddrinfo='no'
		])
	])
		LIBS="${save_LIBS}"
	])
	if test "x$nanotcl_cv_func_getaddrinfo" = 'xyes'; then
		LIBS="${LIBS} -lws2_32"
		AC_DEFINE(HAVE_GETADDRINFO, [1], [Define if we have getaddrinfo])
		AC_DEFINE(HAVE_GETNAMEINFO, [1], [Define if we have getnameinfo])
		AC_DEFINE(HAVE_WINDOWS_H, [1], [Define if we have <windows.h>])
		AC_DEFINE(HAVE_WS2TCPIP_H, [1], [Define if we have <ws2tcpip.h>])
	fi
])

dnl Handle specifying where TCLLIB is, for testing
AC_SUBST(TCLLIB_PATH)
TCLLIB_PATH='/dev/null'
AC_ARG_WITH([tcllib-path], AS_HELP_STRING([--with-tcllib-path], [Specify a path to Tcllib for the test suite]), [
	if test "$withval" != "no" -a "$withval" != "yes"; then
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